Consider the linear transformation T : R2[x] →
R2[x] given by T(a + bx + cx2 ) = (a − b −
2c) + (b + 2c)x + (b + 2c)x2
1) Is T cyclic?
2) Is T irreducible?
3) Is T indecomposable?

To find the consumer surplus, we need to first find the equilibrium quantity at the given sales level of 800. To do this, we set the demand function equal to 800 and solve for q:

770 - 0.3q - 0.0004q^2 = 800

0.0004q^2 + 0.3q - 30 = 0

Using the quadratic formula, we get:

q = (-0.3 ± sqrt(0.3^2 - 4(0.0004)(-30))) / (2(0.0004))

q = 387.97 or q = -77.47

Since the negative quantity doesn't make sense in this context, we can disregard it and conclude that the equilibrium quantity at a sales level of 800 is approximately 388.

To find the consumer surplus, we need to calculate the area between the demand curve and the price line up to the quantity of 388. We can do this by taking the integral of the demand function from q = 0 to q = 388 and subtracting the total revenue earned at the quantity of 388:

CS = ∫[770 - 0.3q - 0.0004q^2]dq - (770 - 0.3(388)) * 388

CS = 217,829.32 - 66,224 = 151,605.32

Rounding to two decimal places, the consumer surplus is $151,605.32.

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By using this algorithm, we can efficiently determine whether a graph with 15 vertices is 2-colorable or not.

To prove Lemma 1, we need to show that if a small subset of vertices in a graph with 15 vertices is 2-colorable, then the entire graph can be 2-colored. Similarly, if a small subset of vertices in a graph with 15 vertices is not 3-colorable, then the entire graph is not 3-colorable.

We can prove this by using a brute force algorithm, where we exhaustively search over all small subsets of 15 vertices. If we find a subset that is 2-colorable, we can use this to 2-color the entire graph. Conversely, if we find a subset that is not 3-colorable, we can conclude that the entire graph is not 3-colorable.

This algorithm is justified by Lemma 1, which states that the 2-colorability of a small subset of vertices implies the 2-colorability of the entire graph, and the non-3-colorability of a small subset of vertices implies the non-3-colorability of the entire graph.

Therefore, by using this algorithm, we can efficiently determine whether a graph with 15 vertices is 2-colorable or not.

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The values are π/6 radians, π/4 radians and 18π/5 radians.

Given are angles we need to find the radian measures of the angles,

x degrees × π / 180 = x radians

So,

a) 30 degrees =

30 degrees × π / 180 = π/6 radians

b) 45 degrees =

45 degrees × π / 180 = π/4 radians

c) 50 degrees =

50 degrees × π / 180 = 18π/5 radians

Hence the values are π/6 radians, π/4 radians and 18π/5 radians.

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Given the rules mentioned, we can express the number of people at each location at time t = n + 1 in terms of the number of people at each location at time t = n as follows:

p_n+1 = 3/4 * s_n + 1/3 * b_n

s_n+1 = 1/4 * p_n + 3/4 * b_n

b_n+1 = 1/3 * p_n + 1/4 * s_n

These formulas represent the number of people at the picnic area, swimming pool, and baseball field at time t = n + 1 in terms of the number of people at each location at time t = n.

Given that there are 600 people in each location at t = 0, we can find the values for p_1, s_1, and b_1 by substituting the initial values into the formulas:

p_1 = 3/4 * s_0 + 1/3 * b_0 = 3/4 * 600 + 1/3 * 600 = 450 + 200 = 650

s_1 = 1/4 * p_0 + 3/4 * b_0 = 1/4 * 600 + 3/4 * 600 = 150 + 450 = 600

b_1 = 1/3 * p_0 + 1/4 * s_0 = 1/3 * 600 + 1/4 * 600 = 200 + 150 = 350

Therefore, p_1 = 650, s_1 = 600, and b_1 = 350, representing the number of people at the picnic area, swimming pool, and baseball field respectively at time t = 1.

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Answer:

10cm

Step-by-step explanation:

25/2.5

name me brainliest please.

The area of the surface formed by revolving the polar curve r = 4cosθ about the polar axis is 0 square units.

To find the area of the surface formed by revolving the polar curve r = 4cosθ about the polar axis, we can use the formula for the surface area of revolution in polar coordinates.

The formula for the surface area of revolution in polar coordinates is given by:

[tex]A = 2π ∫[a, b] r(θ) √(r(θ)^2 + (dr(θ)/dθ)^2) dθ[/tex]

In this case, the polar equation is r = 4cosθ, and we are revolving it about the polar axis. The interval of integration is 0 ≤ θ ≤ 2π.

To calculate the surface area, we need to evaluate the integral:

[tex]A = 2π ∫[0, 2π] (4cosθ) √((4cosθ)^2 + (-4sinθ)^2) dθ[/tex]

Simplifying the expression inside the square root, we have:

[tex]A = 2π ∫[0, 2π] 4cosθ √(16cos^2θ + 16sin^2θ) dθ[/tex]

Simplifying further, we get:

A = 2π ∫[0, 2π] 4cosθ √(16) dθ

A = 8π ∫[0, 2π] cosθ dθ

Evaluating the integral, we have:

A = 8π [sinθ] from 0 to 2π

A = 8π (sin(2π) - sin(0))

Since sin(2π) = sin(0) = 0, we get:

A = 8π (0 - 0) = 0

Therefore, the area of the surface formed by revolving the polar curve r = 4cosθ about the polar axis is 0 square units.

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Answer:

C

Step-by-step explanation:

[tex]x^2 +8+x^2+8+x^2+6x-3+x^2+6x-3[/tex]

[tex]x^2+x^2+x^2+x^2=4x^2[/tex]

[tex]6x+6x=12x[/tex]

[tex]8+8-3-3=10[/tex]

Ans: [tex]4x^2+12x+10[/tex]

The function table for the function, y = 12x + 20, is

x                       y

-3                     -16

-2                     -4

-1                      8

0                      20

1                       32

2                     44

3                     56

From the question, we are to complete the function table for the given function.

The given function is

y = 12x + 20

We will create the table function from x = -3 to x = 3

When x = -3

y = 12x + 20

y = 12(-3) + 20

y = -36 + 20

y = -16

When x = -2

y = 12x + 20

y = 12(-2) + 20

y = -24 + 20

y = -4

When x = -1

y = 12x + 20

y = 12(-1) + 20

y = -12 + 20

y = 8

When x = 0

y = 12x + 20

y = 12(0) + 20

y = 0 + 20

y = 20

When x = 1

y = 12x + 20

y = 12(1) + 20

y = 12 + 20

y = 32

When x = 2

y = 12x + 20

y = 12(2) + 20

y = 24 + 20

y = 44

When x = 3

y = 12x + 20

y = 12(3) + 20

y = 36 + 20

y = 56

Hence, the function table is:

x                       y

-3                     -16

-2                     -4

-1                      8

0                      20

1                       32

2                     44

3                     56

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Each number is represented as a node, and the directed edges indicate the divisibility relation.

To directly create or display visual diagrams like the Hasse diagram. However, I can explain how to construct the Hasse diagram for the relation | (divisibility) on the set S = {4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24}.

A Hasse diagram represents the partial order relation between elements of a set. In this case, the relation | represents divisibility, where a divides b (a | b) if b is a multiple of a.

To construct the Hasse diagram, follow these steps:

Draw a node for each element in the set S: 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24.

Connect the nodes based on the divisibility relation |. If a divides b (a | b), draw a directed edge from a to b.

Arrange the nodes vertically so that elements that are divisible by others are placed below them. This ensures that the diagram represents the partial order relation.

Here is a text representation of the Hasse diagram for the relation | on S:

lua

Copy code

  24

  |

+---+

|   |

12  20

|   |

+--+ |

| | |

6 18 |

| | |

+--+ |

| |

+-+ |

| | |

4 8 16

| |

+---+

|

10

|

14

|

22

Each number is represented as a node, and the directed edges indicate the divisibility relation. For example, 12 is divisible by 6, so there is an edge from 6 to 12. The numbers at the top of the diagram (e.g., 24) have no numbers above them because they are not divisible by any other number in the set.

Please note that without a visual representation, the text-based diagram may not be as visually intuitive. If possible, it's recommended to refer to an actual visual representation to better understand the Hasse diagram.

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The greater total area would be the three Asian countries when added together. That is option A.

The total area of the Asian countries in the list are given below:

Russian = 1.71×10⁷

China = 9.60×10⁶

India = 3.29× 10⁶

Total area = 1.71×10⁷+9.60×10⁶+3.29×10⁶ = 14.6×10¹⁹

The total area of the American countries in the list are given below:

Canada =9.98×10⁶

United States = 9.53×10⁶

Brazil = 8.32×10⁶

Total = 28.02×10¹⁸

Therefore when the both totals are compared, the biggest total area is the Asian countries.

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The inequality (n + 1)! > 2^n+3 holds for all natural numbers n greater than or equal to 4.:We can prove this inequality using the generalized principle of mathematical induction (PMI).

Base case: We need to show that the inequality holds for n = 4.(4+1)! = 5! = 120 and 2^4+3 = 2^7 = 128. Therefore, (4 + 1)! < 2^4+3.

The base case is true.Step case:

, which proves the step case.By the generalized PMI, we have proved that the inequality (n + 1)! > 2^n+3 holds for all natural numbers n greater than or equal to 4.

Summary: The inequality (n + 1)! > 2^n+3 holds for all natural numbers n greater than or equal to 4. This can be proved using the generalized principle of mathematical induction (PMI).

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The sample standard deviation measures the dispersion of data within a sample, while the population standard deviation measures the dispersion within an entire population.

Using a calculator, the sample standard deviation for the given data is found to be approximately 5.92 when rounded to two decimal places. This measures the variability of the data within the sample.

Since the data provided does not specify whether it represents a sample or a population, we will assume it is a sample. Thus, the sample standard deviation is an estimate of the population standard deviation. To calculate the population standard deviation, we use the same value obtained for the sample standard deviation, which is approximately 5.92 when rounded to two decimal places.

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The maximum value of $Z$ is 28500, which occurs at (450, 150). Thus, the optimal production is 450 units of P and 150 units of Q, which would cost Ghc 28,500.

Linear programming (LP) is a method of optimizing a linear objective function, subject to a set of linear constraints. The engineering company produces two products, P and Q, with a daily production upper limit of 600 units for total production. At least 300 total units must be produced every day. The machine hours' consumption per unit is 6 for P and 2 for Q. At least 1200 machine hours must be used daily. Manufacturing costs per unit are Ghc50 for P and Ghc20 for Q.i. Linear Programming problem formulationMaximize[tex]$ Z = 50P + 20Q$[/tex]

Subject to[tex]$P + Q ≤ 600$$P ≥ 0$$Q ≥ 0$$6P + 2Q ≥ 1200$$P + Q ≥ 300$i[/tex]i. Graphical approachFirst of all, we need to plot the boundary lines of the constraints. We know that:the $y$-intercept of the line [tex]$P + Q ≤ 600$ is 600the $x$-intercept of the line $P + Q ≤ 600$ is 600the $y$-intercept of the line $6P + 2Q ≥ 1200$ is 600the $x$-intercept of the line $6P + 2Q ≥ 1200$ is 200the $y$-intercept of the line $P + Q ≥ 300$[/tex] is 300the $x$-intercept of the line $P + Q ≥ 300$ is 300Putting these points on a graph and joining the lines, we get a feasible region as shown below. The shaded area is the feasible region.The optimal solution is obtained at the corner points of the feasible region. In this case, the corner points are (200, 400), (300, 300), and (450, 150).

The value of $Z$ at each corner point is as follows:(200, 400): $Z = 50 × 200 + 20 × 400 = 28000$(300, 300): $Z = 50 × 300 + 20 × 300 = 27000$(450, 150): $Z = 50 × 450 + 20 × 150 = 28500$The maximum value of $Z$ is 28500, which occurs at (450, 150). Thus, the optimal production is 450 units of P and 150 units of Q, which would cost Ghc 28,500.

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The circulation of the vector field F = yi + 2xyj around the unit circle, oriented counterclockwise, is 0.

To calculate the circulation of the vector field F = yi + 2xyj around the unit circle, oriented counterclockwise, we can use Green's Theorem. Green's Theorem relates the circulation of a vector field around a closed curve to the double integral of the curl of the vector field over the region enclosed by the curve.

The circulation (C) is given by:

C = ∮ F · dr

where F is the vector field and dr is the differential displacement along the curve.

In this case, we have F = yi + 2xyj and the curve is the unit circle.

To apply Green's Theorem, we need to compute the curl of F:

curl(F) = ∂Q/∂x - ∂P/∂y

where P and Q are the components of F.

In this case, P = 0 and Q = 2xy.

Taking the partial derivatives, we have:

∂Q/∂x = 2y

∂P/∂y = 0

Therefore, the curl of F is curl(F) = 2y.

Now, let's evaluate the double integral of the curl of F over the region enclosed by the unit circle:

∬ curl(F) dA

Since the unit circle can be represented using polar coordinates, we have dA = r dr dθ.

The limits of integration for r are from 0 to 1, and for θ from 0 to 2π.

∬ curl(F) dA = ∫[0, 2π] ∫[0, 1] (2r sin(θ)) r dr dθ

Simplifying, we get:

∬ curl(F) dA = 2 ∫[0, 2π] ∫[0, 1] r^2 sin(θ) dr dθ

Evaluating the inner integral with respect to r, we get:

∬ curl(F) dA = 2 ∫[0, 2π] [(1/3) r^3 sin(θ)] evaluated from 0 to 1 dθ

∬ curl(F) dA = 2 ∫[0, 2π] (1/3) sin(θ) dθ

Integrating with respect to θ, we have:

∬ curl(F) dA = 2 [(1/3) (-cos(θ))] evaluated from 0 to 2π

∬ curl(F) dA = 2 [(1/3) (-cos(2π) + cos(0))]

∬ curl(F) dA = 2 [(1/3) (1 - 1)]

∬ curl(F) dA = 0

Therefore, the circulation of the vector field F = yi + 2xyj around the unit circle, oriented counterclockwise, is 0.

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Broken down (disaggregated) into its components, gross domestic product as spending is given by the equation: Y = C + I + G + NX.

The components of this equation are: C (consumer spending), I (business investment), G (government spending), and NX (net exports). This equation shows how much is being spent on final goods and services in the economy, which is a measure of the total value of all products produced in a given period of time. Equations are used to represent relationships between variables, in this case, the relationship between the components of GDP.
The correct equation for gross domestic product (GDP) when broken down into its components is:

Y = C + I + G + NX

Where:
Y = Gross Domestic Product
C = Consumption
I = Investment
G = Government spending
NX = Net exports (exports - imports)

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Answer:

.32

Step-by-step explanation:

This is the answer to the

The probability of a random point landing in the red-shaded triangle within a circle is found by dividing the area of the triangle by the area of the circle. The exact probability as a decimal would require specific measurements of the triangle and the circle.

The probability that a randomly selected point within the circle falls in the red-shaded triangle is calculated by finding the ratio of the area of the triangle to the area of the circle. Let's assume, for simplicity's sake, that the area of the triangle is T, and the total area of the circle is C.

So, you would calculate:

P = T/C

To find the exact probability as a decimal, you would need to know the specific measurements of the triangle and the circle. You would use the formulas for the areas of a triangle and a circle to get these figures. Finally, you would divide the area of the triangle by the area of the circle and round to the nearest hundredth.

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D) whether or not a person who takes the drug gets a headache.

The populations being considered in this scenario are:

C) All individuals who take the medication.

The variable being examined for individuals in the population(s) is:

D) Whether or not a person who takes the drug gets a headache.

The medical researcher believes that more than 5% of those who take the drug actually get headaches, so option B) "More than 5% of those who take the drug actually get headaches" aligns with the researcher's belief. However, this option does not represent a specific population but rather a hypothesis or belief about the population as a whole.

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If xn>0 for all nN, and lim (xn)=0, then lim(√(xn))=0

We know that the limit of a sequence is unique. Since lim(xn) = 0, we have that for every ε > 0, there exists an N ∈ ℕ such that for all n ≥ N, we have |xn - 0| < ε, which implies xn < ε. Now, consider the sequence √(xn). Since xn > 0 for all n ∈ ℕ, we can take the square root of both sides of the inequality xn < ε. This gives us:
√(xn) < √(ε).
Since ε > 0 can be arbitrarily small, it's clear that lim(√(xn)) = 0, as for every ε > 0, there exists an N such that for all n ≥ N, we have √(xn) < √(ε).

Given the conditions that xn > 0 for all n ∈ N and lim(xn) = 0, we have shown that lim(√(xn)) = 0.

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The length of A'B' is 4 units.

Given that a triangle ABC which is being dilated by a scale factor of 2 to form A'B'C',

We need to find the length of A'B',

Finding the length of AB,

The distance between two points =

[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

So,

[tex]AB = \sqrt{(1-1)^2+(3+1)^2}[/tex]

AB = 2 units

So,

A'B' = 2 x 2 = 4

Hence the length of A'B' is 4 units.

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There are 4,960 different combinations of pennies, nickels, dimes, and quarters that a piggy bank can contain if it has 29 coins in it.

Let x be the number of pennies, y be the number of nickels, z be the number of dimes, and w be the number of quarters in the piggy bank.

Then we have:

x + y + z + w = 29

where x, y, z, and w are non-negative integers.

This is a classic "balls and urns" problem, and the number of solutions is given by the formula:

C(n + k - 1, k - 1)

where n is the number of balls (29) and k is the number of urns (4).

Applying this formula, we get:

C(29 + 4 - 1, 4 - 1) = C(32, 3) = 4960

Therefore, there are 4,960 different combinations of pennies, nickels, dimes, and quarters that a piggy bank can contain if it has 29 coins in it.

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Given statement solution is :- a) The slope of the staircase is approximately 0.06796.

b) The angle of the staircase is approximately 3.88 degrees.

To find the slope of the staircase, we can use the formula:

Slope = rise / run

Given that the rise of the staircase is 7 inches and the run is 103 inches, we can substitute these values into the formula:

Slope = 7 inches / 103 inches

Calculating this division, we get:

Slope ≈ 0.06796

Therefore, the slope of the staircase is approximately 0.06796.

To find the angle of the staircase, we can use the inverse tangent (arctan) function. The formula is:

Angle = arctan(slope)

Using the slope we calculated earlier (0.06796), we can substitute it into the formula:

Angle = arctan(0.06796)

Calculating the arctan of 0.06796, we get:

Angle ≈ 3.88 degrees

Therefore, the angle of the staircase is approximately 3.88 degrees.

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The alternate interior angle of  ∠3 is the angle  ∠6

The alternate interior angle of 3 is an interior angle such that is in the other intersection (so it is in the intersection of the line s) and that is in the oposite side of the original angle.

We can see that 3 is in the left side, then the alternate interior angle is the one that is on the right side of the intersection below.

That angle will be angle 6.

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Allen incorrectly multiplied the dimensions in inches instead of converting them to feet using the given scale factor.

The correct option is C.

Allen is incorrect because he multiplied the length and the width of the woods and then applied the scale.

To find the area of the woods, we need to first convert the dimensions from inches to feet using the given scale. The scale tells us that 1 inch is equal to 880 feet.

The wood dimensions are given as 3 inches by 5 inches. To convert these dimensions to feet, we multiply each side by the scale factor:

Length = 3 inches x 880 feet/inch = 2640 feet

Width = 5 inches x 880 feet/inch = 4400 feet

Now we can calculate the area of the woods by multiplying the length and the width:

Area = Length x Width = 2640 feet x 4400 feet = 11,616,000 square feet

Perimeter = 2(2640 + 4400) = 14080

Since Allen's calculation of 13,200 square feet does not match the correct calculation of 11,616,000 square feet, we can conclude that Allen made an error in his calculation. Specifically, he incorrectly multiplied the dimensions in inches instead of converting them to feet using the given scale factor.

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The area of the bold sector is 4.4 (rounded to one decimal place).

To find the arc length and area of the bold sector, we need to use some formulas. First, we need to find the measure of the central angle, which is given as 60 degrees.

To find the arc length, we use the formula:
arc length = (central angle/360) x 2πr
where r is the radius of the circle.
Substituting the values given, we get:
arc length = (60/360) x 2π x 5
arc length = 5.2

Therefore, the arc length of the bold sector is 5.2 (rounded to one decimal place).

To find the area of the sector, we use the formula:
area = (central angle/360) x πr^2
Substituting the values given, we get:
area = (60/360) x π x 5^2
area = 4.4

Therefore, the area of the bold sector is 4.4 (rounded to one decimal place).

In summary, the arc length of the bold sector is 5.2 and the area is 4.4.

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The eigenvalues of matrix A + B are λ₁ = 4 and λ₂ = 4.

To find the eigenvalues of a triangular matrix, we simply need to take the values on the main diagonal.

For matrix A = [3 0; 1 1]:

The eigenvalues are the diagonal elements, so the eigenvalues of matrix A are λ₁ = 3 and λ₂ = 1.

For matrix B = [1 1; 0 3]:

The eigenvalues are also the diagonal elements, so the eigenvalues of matrix B are λ₁ = 1 and λ₂ = 3.

For matrix A + B = [4 1; 1 4]:

Again, the eigenvalues are the diagonal elements, so the eigenvalues of matrix A + B are λ₁ = 4 and λ₂ = 4.

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Answer: The period of a function is the time interval between the two occurrences of the wave.

Step-by-step explanation:

The functions:

1. f(x)=x4+3x10+2x-5   neither even nor odd.

2. f(x)=x3+x5+x-5        it is odd function.

3.f(x)=x-2                     neither even nor odd.

4. f(x)=-5x4-3x10-2      it is an even function.

Since we know that,

If f(-x) = f(x) then function is called even function

And if f(-x) = -f(x) then it is called odd function.

And if other than f(x) or  -f(x)

The  it will neither even nor odd.

Now for the given functions:

(1) f(x)=x⁴+3x¹⁰+2x-5

Now put x = -x then

f(-x)=x⁴+3x¹⁰-2x-5

Hence is it not equal to (x) or  -f(x)

The  it will neither even nor odd.

2. f(x)=x³+x⁵+x-5

Now put x = -x then

f(x) = - x³- x⁵ - x-5 = - f(x)

Hence, it is odd function.

3. f(x)=x-2

Now put x = -x then

f(x)= - x-2

Hence is it not equal to (x) or  -f(x)

The  it will neither even nor odd.

4. f(x)= -5x⁴-3x¹⁰-2

Now put x = -x then

f(-x)= -5x⁴-3x¹⁰-2 = f(x)

Hence, it is an even function.

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